Can PayPal access my bank account after removed?

I have a buyer who purchased an iPhone from me and they are asking me for 1/5 of the payment back because the item isn't as I described it in my listing. I don't feel like he should be complaining for any reason as my iPhone was in mint condition.
I got a notification that the PayPal funds of the full amount will be in my account tomorrow. Once they are in there and I transfer them to my bank account can I remove my bank account from PayPal? I don't want them to be able to take my money back when he requests that 1/5 refund.
Pretty much what I'm doing is not going to issue him any kind of refund, close my eBay account and close my PayPal account too. Will PayPal be able to find my account info and take what they want?

I'm looking to buy a tablet. Recommendations?

While I do love my father's iPad Mini, it's not the most affordable. I'm looking for a tablet for the following needs:

- Document reading, such as PDF and Word files. I would also want to be able to underline and highlight things in the document. (Even if this function doesn't come with the tablet directly, if there's an app that allows me to, then it's fine). Document reading is the main reason I'm looking into getting a tablet.
- Music, but not necessary (imported from my computer)
- Videos (MP4 files downloaded from the Internet, as well as full-length movies imported from my computer)

Preferences:
- HD Quality, though not necessary. It is preferable so that I can watch my movies in good quality and take nice pictures. I'm not sure there's anything that competes with Apple's HD though, so I'm willing to compromise
- Size isn't a big concern, but I don't want it excessively heavy
- As cheap as possible for the best quality. I want something better than what I paid for (if that is at all possible)
- Simple to use if I have to connect it to the computer, but I would rather use the tablet as much as possible to make simple downloads from it directly instead of hooking it up to the laptop. The videos I want to download are free and legal and are made to be downloaded instantaneously from the website, though I'm unable to on the iPad mini and iPhone.
- Wi-Fi (MUST HAVE THIS)

If anyone can recommend good products and good prices that fit my needs, I'd be most grateful.

IPhone 5 STOLEN - Erased on FindMyiPhone - Then recovered/got back my iPhone - What to do now?

So my iPhone 5 was stolen, and the police recovered it. Before I got it back I erased it on FindMyiPhone, on iCloud.com. Now when I turn my phone on, it goes in a black screen with the white little rotating loading symbol on the middle of the screen. It's been like this for HOURS! What can I do?
Please help, and srry for bad english. English isn't my first language.
10 points to whoever helps me solve this
I really need my phone for tomorrow so I promise I pick a best answer if someone can help me solve this.

My iPhone 5 said slide to upgrade when I turned it on?

I turned my iPhone 5 off then turned it on and it didn't give me a choice and all it said was slide to upgrade (it was like the type of slide when you unlock it). Is this normal? It has never done this before. I already had ios8 too

IPhone will not switch on or even function?

My charger switched off my iPhone and now my phone will not switch on unless connected to the charger.

But, I can't access Wi-Fi or my sim and the date and time resets. It does not connect to iTunes and freezes after five minutes. It will not recognise sound and if I take it off the charger, it immediately switches off. I've installed iOS8 previously but nothing is working.