I think you should apply from branch and ask them to issue Rupay Platinum DC (for Amazon pay offer), some people prefer take jcb variant (of Rupay).
Sometime branch deny because of account segmentation. Below platinum DC, Gold DC for Gold segment may give 2x reward points (I have not tested). If you know your customer segment that may be useful.
As you already know, Global DC area the basic one minimal charges. For codes of other DC I think
@6ix9ine can help you.
I am also looking for changing my SBI dc at some point of time. Hence, not much experience. But I am sure all online options are basic one. Branch has more option. You can't reopen blocked card.