Hi there.
Welcome to the Three Community.
There's no direct contact number to the technical team. The Support Team would normally look into the issue with you, allowing them to determine what's going on, and this let's them either transfer you or arrange contact with the correct team to get it looked into further.
For logging a complaint, you can do that on the dedicated Complaints Page. There are contact options and details of the complaints processes linked within.
Pete.
Mod tip! The author of a post can hit 'Accept as Solution', to highlight a reply that helped solved their query.
