I see that you asked the same question back in September. It is still the same. Part of the application requires you to have your employer state you have permission to work remotely from Thailand. It doesn’t sounds like you can get something like that.
If it is a multi-entry tourist visa, you will need to wait until it expires. If single entry, you have to enter once and then exit and it is used/finished. Then you can apply
Anonymous participant HCMC is supposed to be a 5 day turn around. Since today is 5 days from resubmission, hopefully you get it today or tomorrow. If not, you might want to reach out
Anonymous participant - They answered your questions. You can not have two valid visas at the same time. Some have been able to do this because their other visa was through immigration, but your first/valid visa is through MOFA and therefore they can see it in their system, if you apply for the DTV now or after your TR expires, either way you will need to be in Vietnam with no formal visa that lets you back into Thailand, until approved for
Are you comparing your timeline with others who applied via the same embassy or just in general, because each embassy had a different timeframe used to approve visas. Some embassies take 5 days while others take 30 days. Also, so also explicitly state that if you need to submit new documents, the processing time/clock resets to 0 days since submission. It would therefore be helpful to know which embassy you applied via.