Service/Signal issue and Data issue Glasgow/Paisley

[Jasostan]

Hello,

I have been having issues for around 3 weeks now, where my phone shows signal & 5G but i am unable to make/receive calls and/or connect any data. This is intermittent and generally whilst driving occurs at the same parts of the M8. It is completely unworkable as my phone doesn't actually act as a phone for 90% of the time that i am out the house. I have used all troubleshooting for both data and phone service in terms of basic and advanced settings on the phone to no avail. 

Any advice? Could it be the device? 

[bristolian]

Does this happen in a specific direction of travel? If you have a call in-progress when you enter the problem area, does it hold or does it drop?

What troubleshooting have you tried thus far? The first thing would be to check for coverage issues - use the "check status" option on https://ee.co.uk/help/mobile-coverage-checker