@Aaron ******
sadly, the Thai consulate on Bali closed during the pandemic and didn't reopen. You can try to apply within the online E-visa system of the Thai Embassy London, despite you being on Bali. Normally they allow your application from a location abroad. If not, then your could enter Thailand visa-exempt, get stamped in for 30 days which you can extend for 30 more days for 1900.- THB. However the airline might ask you for an "onward travel proof" within the first 30 days after arrival, at the check-in in Bali