Some customers do pay two standing charges if they have two meters. If you had two meters before the smart meter was installed, then I suspect you were told that one of the standing charges would stop when the single meter was installed. So now you should only be paying one standing charge. Do you see something different in your online account?  

If this arrangement took place before 1 October, you will have been quoted the prices that were current then. All standard variable prices increased in line with Ofgem’s price cap on 1 October, as you must have noticed, so after your new meter was installed, you would see the new prices.

When tariff rates are quoted to you, they must include VAT. The rates you see in your online account are always given ex VAT, because the VAT is added as a single separate item on each bill. You should see a note to this effect on your Plan page:
“All prices exclude VAT, which is currently charged at 5% for domestic customers.”

You can see the current tariff rates for your location, meter type (multi-rate) and payment method on this page: Our prices | OVO Energy Note that the prices on this page are all ex VAT, as they would appear on your bills.

I only have Electrical energy and only ever paid one standing charge with THTC both with SSEE and over the past year with Ovo energy with the storage heaters so now have one smart meter for all electrical energy 

I only ever had one standing charge online 

when I found my energy plan had been changed on line from THTC plan to economy 9 plan that’s when I found the tariffs and standing charge was increased 

I also expected that since the online energy plan along with the wrong contract date was changed I could now access the Ovo app which still can’t do and can only access online Apparently you get more information about your energy use using the app

when I try to access the app I get the following message 

The problem is iv no idea what Bill ill recieved at the end of this billing period 

Pre and post online account tariffs

Did you not submit readings as usual on 9 October?

Not to worry, the estimate is probably not far off. From the start of the current billing period - 9 October - until 15 October  when you got your new meter, you are charged at the rates pertaining to the THTC tariff then in force. From then on, you’ll be charged at the current (from 1 October) Economy 10 rates as shown in your penultimate screenshot. If this isn’t yet apparent from your billing history page, it will be once Billing has caught up with all the changes to your account. The 15 October readings should be the ones submitted by the engineer who installed the new meter, and there should be a label near the meter saying what they were. 

Because you had a meter exchange well into the billing period, you may not see an accurate bill until the end of the next period (8 December). I shouldn’t worry too much about it. Your average cost for those few days was only about £1.20 per day, so the next month’s bill shouldn’t be much more than £40 - just make sure you don’t go and spend that on something else. 

It looks as if your peak time rate has increased by about 2½%, but the offpeak rate has fallen by almost 6%; the standing charge hasn’t changed. Your heating should be less expensive than it used to be, so long as you only have it on in the offpeak periods.

I did submit meter readings the day prior to the smart meter installation 

I would have thought that since the energy plan has been changed on my online account I would be able to access the Ovo app from then