Broadband access denied 'failed billing' message - why?

[#1]

A long standing customer with Direct Debit set up and valid Credit Card option, just in case, and still over the last two weeks I am getting the message "failed.billing.plus.net/apps/payment/failed" on trying to access the internet.  No reason for it as via my work PC I can see by payment has been taken by DD and nothing outstanding.  Unhelpfully there is no Online Chat Service available so forced to phone Customer Service - which does't do what it says!  Over an hour waiting time last week and this morning 15 minutes and by 11am 30 minutes waiting.  Has anyone else experienced this?  Poor 'service' is making me consider moving away......

[#2]

Happend to me last week   could not accept and pay later , I actually got through on phone after 20 mins its was early morning

Was told its a Known bug in the system

https://community.plus.net/t5/My-Account-Billing/pathetic/td-p/1466659

[#3]

It's probably something odd being flagged on your account that will need a staff member like @Chris to investigate. Hopefully it's something quick to sort and get you back on-line.