All of the outgoing calls I make on my Samsung A55 phone take about 30 seconds before I hear ringing or the person answers. After approx 30 seconds the following message flashes up on my phone "Conditional call forwarding active".

I haven't setup call any call forwarding and this occurs for every call I make, whether I use a saved contact or manually dial the  number.

When I go to phone settings/ supplementary services, the cursor spins for a while before producing the following message "Failed to read data. Something went wrong." I assume that this means these options have been disabled by IDMobile and so I can't have accidentally changed them.

How do I get my phone to immediately dial a number without the hassle of waiting 30 seconds or this mysterious call forwarding doing unknown things behind the scenes?

Thanks