Lost contacts during sim car swap?

I've had an old Samsung with the standard sim card, I bought an iPhone 6 and a ordered a nano sim card. The switchover has happened and my old sim is not longer active, but I didn't backup my contacts. Have I lost them forever? I had over 600 contact numbers. I'm with Virgin.

Yes, they have gone forever and you also must install Leo Privacy Guard in your device if you wanna secure all your personal data, such as images and videos, on it. This app is consider to be the best and now it is on the 2nd position of US.Chart.

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