thxs for the tips but I don't think these are the reasons for my problems. I bit of background.
29th June my PC was subjected to ransomeware. Around this time I noticed the problem with my iphone, not exactly when though (it could have been before or after 29th July) since the days after 29th were a bit hazy as I spent the whole weekend reinstalling my PC, changing all my passwords, cancelling all of my credit cards etc. But I having a hard time thinking that my PC problems should have affected my iphone.
What I have tried so far is I have reset all of my network settings and then restarted my phone. I have also made a backup up to my computer today 15th July. Unfortunately I did not switch off the automatic backup that is made to icloud until 6th July.
My question is this. If I want to do a complete reset of my iphone and install a backup from icloud how many versions will I be able to see from there? The one from 6th July obviously but can I see any earlier ones? What will I lose by installing an icloud backup? All my email is on Hotmail and photos I have backuped to my computer but what about text messages? Could it potentially solve my problem with my calls? And if none of the above solves anything I should be to redo the exercise but this time install the backup that I made today to the computer.