Thai Post free pickup service - how to pay for postage??

[TravelerEastWest]

Thai Post free pickup service - how to pay online for the postage??

 

I send our ecommerce packages daily using registered airmail. My local post office is friendly and does a good job.

 

Recently they told me they have free pickup (5+ boxes).

 

Strangely the post office staff person who does the pickup told me I would transfer the money for postage online to his personal account and he would email a copy of the receipt after he paid at the post office.

 

This sounds strange...

 

Anyone know of a bettor way to pay officially online?

 

Thank you! 

[TravelerEastWest]

Just saw the below photo which is on a form for ordering stamps from the post office using what looks like an office bank account?

 

Maybe this account could be used?

[TravelerEastWest]

Another option seems to be the Wallet but it is difficult to do the online signup as when I try to upload my ID the website takes a photo too fast...