Hello Chinazaekpere Ofodile,
Thanks for your question.
Azure requires a valid debit/credit card for identity verification (even for grants). The following credit cards are accepted:
- VISA
- American Express
- Mastercard
https://learn.microsoft.com/en-us/azure/cost-management-billing/manage/change-credit-card
You can also all your bank to:
- Confirm the card is not restricted for online/global use.
- Ask if they see a declined transaction from Microsoft
Once that is solved, View the eligibility criteria here for startups: https://learn.microsoft.com/en-us/microsoft-for-startups/application#eligibility-criteria
You can also contact support here: https://azure.microsoft.com/en-us/support/create-ticket
You can mark it 'Accept Answer' and 'Upvote' if this helped you
Regards,
Abiola