What should I consider when applying for a DTV with a financial sponsor in Thailand?

Hi - I’m looking at applying for a DTV but instead of the 500,000 THB in my personal account I will be using a financial sponsor through a family member (a parent). Has anyone here got any specific advice that I should be looking to include that might not be as obvious for when I apply that ChatGPT wouldn’t be telling me?

Also which embassy did you use if you chose this option as not all embassies accept this option (HCMC for example looks like it might be 50/50 whether or not they accept financial sponsorship for the visa)

Thanks in advance