I tried last night to purchase a ticket with TravelBank funds with following results...
1. Chrome on MacOS, using only TravelBank. When I clicked submit to pay it sat there spinning for 10 minutes so I gave up.
2. Tried again using Chrome on a Chromebook. Same results, just sat there spinning.
3. Tried with Chrome on Windows 10. Same result - more spinning.
4. Switched to Safari on MacOS. I also split the payment between TravelBank and a credit card. It went through immediately.
As a network engineer I should know better to change two variables at once. Now I don't know if it was the change in browser (Chrome vs Safari) or the change in payment type (100% TravelBank vs splitting TravelBank/CC) that fixed it for me. I need to buy another ticket today so will play around with it some more.