Hash and Star keys don't work with two stage verification calls

[Actionhero]

When trying to access on-line bank account the company gives me a verification code then rings my landline to check that I have that number. On answering they need me to press the hash key on my phone  to presumably get to the point where I input the code. they have given me, but thehash key pressed is not recognised so we get no further.

[Daniel0210]

@Actionhero 

Have you tried another phone as it sounds like it could be an issue with the handset not your connection? 

[Actionhero]

@Daniel0210 

Thanks for the reply, but it's not the landline handset equipment. It's some sort of clash between Sky technology and the bank's technology. Whatever Sky provide as a hash/star code from the handset is not recognised by the bank. It has happened in the past and the work around is to give the bank a mobile number, but this doesn't help all those who rely on  their handset. Decided to see if anyone else has the same difficulty - the bank (and it's not just one) say they have the problem frquently.