on 21-08-2020 15:00
Not all calls and texts are free on a Big Bundle - your minutes you get with your Big Bundle are to any mobile network ( within mainland UK ), all landlines including numbers starting with 0800 and anything beginning with 03.
It does NOT include anything else beginning with 08, 09 or international, this also goes for text messaging. So if you don't hear 'bundle call' as it's ringing out, you will be charged accordingly.
Here's a link for you that explains further.
on 21-08-2020 17:50
The preceding message cannot he turned off but the following balance message can by Calling customer service.
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)