Sky doesn't like Halifax Mastercard

[Greg1234567]

I am trying to change my payment method.  However, Sky doesn't seem to like my Halifax Mastercard.  How do I get around this?

[PandJ2020]

What does 'doesn't like' mean?

[Greg1234567]

It means it won't accept it and comes up with an error message 

[PandJ2020]

...and the error message is?

[Greg1234567]

It says:

Something's gone wrong. Please try again later.

All very vague. Nothing wrong with the credit card, as it works on other websites. And the payment page on Sky works, as I've added another credit card to it.

Is there a phone number I can ring that has someone on the other end of it who knows what they're doing?

[caesarome]

The phone lines might be closed now.

150 is the free number to use from a Sky Mobile or Sky Talk phone otherwise under "Need more help ?" link at the bottom of the page on this link is the number to call Sky on:

https://www.sky.com/help/home