You can go to this axis magnus welcome/annual benefit link to generate yourself the voucher, as mine was due last month so generated myself.
Axis Magnus benefits | In association with Thriwe
Axis Magnus benefits | In association with Thriweaxismagnusbenefits.thriwe.com
You can try to generate it. This link would valid upto 6 months of paying joining/annual fee.should i have to claim the welcome benefit immediately or can i generate voucher whenever i need? how does it work??