Unable to update card

Time and time again I've been asked to update my card details as Homestead was unable to take payment - not sure why as card is correct, bank has no issue and account has money - anyway each time I try I get the error 404 message. Today I try again and I don't even get chance to dial in numbers as it says 'Service unavailable' - I risk losing my websites over all this mess. I can't call you and you can't call me (I know because you tried!) so could someone PLEASE reactivate my account try taking payment.