E visa Technical help if needed during online E visa application and you are experiencing any problems with file size upload etc
These are the telephone numbers you need to contact the London Thai Embassy. Note they are London times and you need to allow for BST.
Also note the extension numbers you will need to go through.
Direct lines are +44 207 225 5507 / +44 207 225 5524
Or +44 207 589 2944 / +44 207 225 5500 ext 5505, 5526
However, the staff are visa staff and they also help with technical issues.
It is better to call 1400 - 1700 hours. since in the morning the staff are providing services at the counter. Only if we are less busy, they can answer the phone in the morning.
TLDR : Answer Summary
For assistance with online E visa applications, especially regarding technical issues like file size uploads, you can contact the Thai Embassy in London. The embassy provides specific direct lines: +44 207 225 5507 or +44 207 225 5524, and also +44 207 589 2944 or +44 207 225 5500 with extensions 5505 and 5526. It is recommended to call between 14:00 and 17:00 BST when staff are available to help with these queries.