Legality of Sky Contact?

We agreed to a new contract with Sky in May 2017. We received this email which, presumably, is the basis for the contract.

Hello xxxx,

I'm writing to confirm that you have agreed to take up our fantastic offer of:

Sky TV (discounted by £16.50 per month, with remaining duration of 12 months)

We also wanted to remind you that as part of this offer, you've agreed to a new minimum term for the products listed in the table below:

Subscription New min. term Start Date New min.term commitment

SKY TV 17/05/17 12 months

If you decide that you no longer wish to keep this offer, you need to let us know any time within 31 days from when the offer is applied (the 'cooling off period'). If you do this you will be put back in the same position you were before you accepted this offer. As you agreed to your services continuing to be provided during this period you will need to pay us an amount which is proportionate to the service provided up to the point you have told us you no longer wish to take this offer. After your cooling off period, to end your TV contract you'll need to give us 31 days' notice which cannot end before your new minimum term finishes. Early termination charges are payable if, during your new minimum terms (where applicable). your Talk?line Rental or Broadband contracts end )other than where you have a right to end them without charge under the terms and conditions) or we end your TV contract because you have breached your terms and conditions. These early termination charges will be calculated in the same way as in your "Minimum Term' set out in your contracts booklets). We will give you reasonable notice in writing before making any charge.

If you offer included an administration fee, this will appear on your next bill

We're sure that you'll continue to enjoy all the great services that Sky offer - if you need any further help, please visit Sky Help Centre.

Yours sincerely,

The Sky Team

We have just realised that Sky have been taking £21.60 per month, instead of £3.50 since May 2018.

Our argument is that we were not aware that we would be charged so much and that the email 'contract' is deficient as follows:

1. No mention at all of the contract being extended beyond the 12 month period.
2. No mention at all of what monies would be taken after the 12 month period.
3. No mention of what specific product e.g. Sky Original, Sky Variety was in the contract.

About 200 words in the email about what happens within the first 12 months, but NOTHING about what happens thereafter!?

Additionally, Sky's own Direct Debit guarantee policy states 'If there are any changes to the amount, date or frequency of your Direct Debit ..Sky...will notify you 30 days in advance of your account being debited. We did not receive any notification of such.

Additional info.

We cancelled our Sky subscription and our direct debit (Sky due to take another payment) as a result of this and I am considering getting the DD payments refunded.
I have spoken to Sky both UK And Indian based without success.
We did receive an email from Sky in the spring to say that the Original package would be going up by £1.60 pm.

Legally, do you think Sky have a case? And what should I do?
I realise the amounts are not massive compared with some but we are £80 out of pocket and it is the principle.

Thanks.