my first bill overcharged?

[StefanM93]

Just wondering why my first bill for September is double what it should be? I've paid the £35 for September and it wants me to pay another £35 by October 9th and i can afford that by that date when it should be only £35 a month for my pocket hotspot?

[StefanM93]

as i dont wnat any extra charges for not making a payment as its only meant to be £35 a month not £70 

[Bambino]

@StefanM93 You need to speak to customer service tomorrow.
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[MI5 · Accepted solution]

@StefanM93 

You pay a month in advance so you get a bill immediately you start the contract then a further bill 2 weeks later which is due 2 weeks after that.

You’ll get your first bill within four days of joining O2, and you’ll be charged 14 days after you receive it. Your official billing date is usually the date you joined us, and it will be the same every month.

If you joined us on the 29th, 30th or 31st of the month, your official billing date will be the 1st of the following month. Your first bill will be pro rata, which means that we’ll charge you for one full month’s airtime, as well as any airtime you use in those first few days before your billing cycle starts.

If you’ve upgraded your device, your billing date will stay the same.

Your next bill will be pro rata and might include a charge from your old tariff or Airtime Plan. If you're on O2 Refresh we split your bill in two, so you’ll see two payments each month:

1. Device Plan - the cost of your phone or tablet
2. Airtime Plan - the monthly cost of your data, minutes and texts

Both payments will come out of your account on the same day.

If you've signed up to a non-refresh contract, you’ll see one payment each month.

The best way to keep an eye on your bill is to use My O2. You can see what you’ve been charged for, when to pay and how to pay. You can download the My O2 app for free. Text MYO2APP to 2020.

If you joined O2 or upgraded your device after 23 January 2014, your bill will be adjusted every April by the Retail Price Index (RPI) rate of inflation announced in February. On O2 Refresh, your Device Plan payments are not subject to inflation and remain at 0% interest.

For information about extra charges that might appear on your bill, take a look at our Other numbers and charges page.

https://www.o2.co.uk/help/account-and-billing/your-bill