Effective communication spouse visa

Hi All, I would like to know what is the best method for showing proof of effective communication because everyday I talk to my finance on whatsapp and sometimes during the weekend I call her on her mobile number by lycamobile. But what is the best evidence to use as proof of communication is it screenshots of every whatsapp chat or is it the email option where you can email the whatsapp chat and print it off. But the email does not show mobile number it only shows the date and the time when I speak to her and of course our communication.

Screenshots

CR001 wrote:Screenshots

Ok thanks for your reply isn't the email a good option or is it because they can think it can be edited. Regarding screenshots can it be every 2 screenshots of each month?

Emailing the whatsapp won't work as it doesn't show the mobile number and yes, because it can be edited. HO is particular about the evidence of communication. You must submit as much as you can, showing mobile numbers, dates etc.

CR001 wrote:Emailing the whatsapp won't work as it doesn't show the mobile number and yes, because it can be edited. HO is particular about the evidence of communication. You must submit as much as you can, showing mobile numbers, dates etc.

Okay thanks for your help. I brought her a tablet when I went to India last year around March time but her tablet stopped working around July so she lost her whatsapp conversation at that time but then she was able to get a mobile phone so she only got whatsapp conversation from September until now can that be a issue for the evidence?

Facebook messages, mobile call logs, letters, cards, visits you made to her.......

CR001 wrote:Facebook messages, mobile call logs, letters, cards, visits you made to her.......

I only talk to her on whatsapp only and yes I have got the lycamobile invoice which shows the calls i made to her.