Top Up isn't working online - what can I do?

Can anyone help I topped up my smart/not so smart electric meter on Saturday with £10 just before it was due to run out. Well I’m

now running on friendly credit the £10 has been taking out of my bank I’ve tried entering the UTRN code but it says its already been used. This isn’t the first time this has happened to me and I usually keep putting extra money on. I’m so fed up with this I keep having to go outside to look at my balance as my indoor display never works. I’m fed up with OVO I never had a single issue with my previous supplier.