Non visa related but wasn’t sure where else to ask for advice.

I’ve recently sent a parcel of soft furnishings from the UK to Koh Phangan via UPS

The parcel has made it through all the scans and security checks and now I’m told it can’t be delivered and will be disposed of.

Can anyone suggest why this has happened?

And also which delivery company do you recommend I use so this doesn’t happen again 🙏🏼

Thank you 🙏🏼

Question about Thailand customs/parcel clearance - In May I sent two small parcels (<2kg) via UK Royal Mail from London to Thailand arrived in 6 days no problems at all. Last week I sent a larger parcel (10kg) via TNT and paid extra because they advised 3-5 day delivery time. Not only has the parcel been delayed on route (Dubai and Singapore) but is now being held by FedEx in Bangkok and I’m being told I need to pay for a private clearance agent for them to release the parcel. Does anyone have experience of this happening???