Iphone 4 to samsung galaxy s4 problems

I recently switched from and iphone to the samsung galaxy s4. I love it
but i'm experiencing a problem that my phone provider doesn't know how to fix either.
My iphone is gone and was wiped clean and the sd card shredded. On my other apple products I disabled imessage from being able to happen to my number and can only accept imessages from my iphone.
when I text people who had my imessage there messages they send only send to my apple products and don't go to my phone but rather my ipad.
I'm not sure what is wrong but I really want to fix the problem as soon as possible!
Help me if you have any suggestions!

Added (1). I got my phone basically at a setting like best buy/future shop.
And they have all the carriers and stuff there. And all are pretty knowledgeable but all they can think of us is takimg my number out of my apple products like I already have. Or to disable my imessage completely but I don't want to disable it! Because I use it with family and stuff

Added (2). My phone receives texts form non apple users and droids perfectly fine.
But Like my brother. He has an iPhone 5. And he texted me. And the texts don't go through as texts but as iMessages and only get received on my iPad. Rather than being sent as texts and received as texts on my s4.
So I'm not sure what is up.

Never had an apple
So IMO your friend are still iMessaging again when you text it is s text, when they reply it is a text that is "converted" to a iMessage or attached,

Your IP4 or iPad were the only way to pick up iMessages

You will receive text from non Apple but all the message you receive are from your contacts who have Apple
If you send a text from your iPad to yourself you will only pick it up on the iPad and not the S IV, similarly if you send a text to yourself receipt on. The S IV

I don't understand your problem. Are you expecting iMessages on your GS4? That's kinda impossible.iMessages can only be sent from Apple products.

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