1. Yes it is possible to talk to your RM and get new company added as part of tie up. Try talking to your RM in a positive tone, but indicating that he can loose a good customer if new company is not added to tieup list. Do not talk about loosing Magnus burgundy card. As far as I know, adding a company to tie up list is simple process
2. RM can clarify this point, but Axis system recognises no salary credit post 3 months and then downgrades. MB does not get converted to normal Magnus... most likely 35k fees will be charged, but honestly there is not enough clarity about this process
3. No other card is as good, especially if you are crossing 1.5L per month in expenses - however other cards such as Infinia / ICICI EPM are good to look at with lesser returns