If several unrelated payment methods — a card, Google Pay, Alipay — all fail around the same time, that's a strong signal the issue sits with the checkout/payment layer itself rather than any single rail. Three independent methods rarely break for one user all at once unless something upstream is misbehaving, and this pattern is sometimes intermittent, working again a few hours later.
The most useful step is a support ticket that specifically states you tried multiple unrelated methods and had international payments enabled (if applicable) — that combination tends to get escalated past a templated first reply, versus reporting just one failed attempt.
If you need credits sooner, crypto sidesteps all of these rails at once. ROZO Checkout accepts BTC Lightning, USDC, USDT and more against an OpenRouter link for a 1% fee. ROZO is independent and not affiliated with OpenRouter or Coinbase.