Due to my mistake as I misunderstan

Due to my mistake as I misunderstand that the re-entry, when Esannim went to Japan, was re-entry multiple.However, it is the single re-entry type and we were waiting for her result for renewal VISA at that time. Therefore, I didn't notice Esannim to do the re-entry for this time. In addition, the VISA NON-B is canceled automaticaly, and change to tourist VISA(can stay 90 days in Thailand).
Currently, I have contacted with the agency, who said if there are trip to Korea again, I must contact them for preparing documents and contact Thai Embassy in Korea for asking a new NON-B VISA.
I apologize for unnotice to Esannim before travelling and wasting time for applying NON-B again.

Sincerely,

ผลลัพธ์ (อังกฤษ) 2:

Due to my mistake as I misunderstand that the re-entry, when Esannim went to Japan, was re-entry multiple.However, it is the single re-entry type and we were waiting for her result for renewal VISA at that time. Therefore, I did not notice Esannim to do the re-entry for this time. In addition, the VISA NON-B is canceled automaticaly, and Change to Tourist VISA (Can Stay 90 days in Thailand).
Currently, I have Contacted with the Agency, Who said if there are Trip to Korea Again, I must Contact them for. Preparing documents and Contact Thai Embassy in Korea asking for a New NON-B VISA.
I apologize for wasting time and traveling Unnotice to Esannim before applying for NON-B Again. Sincerely,.