Few months ago, I came to about one platform but i can't remember the name, in case I get to know, I will definitely reply here. But, afaik, they charge huge convenience fees around 5%+.
I don't receive such email. it could be because I hold secured credit card from OneCard. But, yes these fintech changes their partner now and then like Slice do.
Yes, they have stopped issuing unsecured cards and currently, rolling out only secured card.
If you don't have any card and income, go for FD based credit card. Don't look for BNPL products they are mostly useless and currently, in customer acquisition phase that's why they are giving so much discounts and offers.
I have got my first credit card at the age of 20 from Kotak which is FD based card. I have applied in November 2021 and started my credit card journey.