Originally Posted by
rjn21
The evisa site
https://evisa.rop.gov.om/voa can be unstable. I couldn't get it to issue the visa using Chrome or Firefox, it worked sometimes in Internet Explorer and once in Safari from an iPad. If you can get it online, you save time and you can pay using credit card (although it didn't like some of mine). The VoA counters are hit and miss with credit card. My experience is miss, others in my group were hit. If you can't get it online be prepared with some cash.
worked every time with no issue in IE for me