Additional SIM card looks to be replacing existing number?

[tomd_s1987]

I currently have two SIM only plans on my account for my wife and I. A few days ago I purchased a new SIM plan for our daughters first phone, taking it up to three plans on the account. When I log on to the app it looks as though this new SIM is replacing my plan. The only two numbers showing on the account now are the new one and my wife’s one, my one has disappeared. I have phoned EE and spoke to an agent who has advised that there are 3 numbers shown on the account but couldn’t explain why my number wasn’t showing on the app. When I go into billing it looks like my number has been replaced too.
Should I be worried that my number and plan have been replaced or will it update? If it has done this, is it reversible? 
Thanks 

[bristolian]

If the CS agent has advised there are 3 numbers showing on the account, I would treat the app with a pinch of salt.

For how long has the app been showing incorrect numbers? Hours, days, weeks or longer?

Ultimately, rather than not offering an explanation, CS should be raising a fault ticket for that problem - if you so request.