Unfortunately if it in customs in the destination country it is officially out of Tayda/Thailands control. Basically, the Thai post will deliver it to customs where it will be "allowed" into your country, after its been released your coutntries/city post will complete the delivery.
Customs is different in every country, bust all I know is that here in the states I had some suff from Japan come in during the pandemic an it sat in customs for 2.5months. It sucks but eventually most of the time it will get there.