Hello, PLEASE HELP

I'm new here but I'm pretty popular on other Platforms, I'll list below some concerns I have to prevent my posts from deleting and my profile from getting banned.

I'm an e-giftcard seller so, answer the questions below knowing the case.

1_ Do I have to post proof for each brand? and what kind of proof should I attach? I have alot of vouches on Tele.gram but no one sends me a pic while they're there and yk that could be easily done through some editing.

2_ Can I start posting what I have now? or should I go through some verification that the website requires?

3_ Should I post everything I have in one post or I can post brand per post?

4_ Can I put name or @ on other platforms if buyers wanna dm easily?

5 and most important question, what thread am I allowed to sell these e-GiftCards?

All brands I have, I deliver as PDFs, so the buyer won't go through using apps like Giftme, Stocard, or PocketZee... I save him time and money. My rates are, $100 for either $25 or $30. My warranty covers for 1 week after delivering so all buyers must be good. I refund when valid reasons are given. I can't provide proofs as pics since I have almost none that proves the pics are taken by my buyers, although I can provide my reputation here after going through some sales.

Thanks