SR213 Phone Port Died - Escalation Please

[FLC]

Today my phone started reporting a line error. Tried another phone & that had no dial tone. Rebooted & factory reset the Hub, still the same. Swapped to an SR203 & the phone works. Seems fairly conclusive that the phone port in the SR213 has died. No option to test phone in the app & going through the web site tells me to expect a response in 72 hours.

Any chance of escalation to get this replaced please? Can't stick with the SR203 as it weirdly only delivers half the available VDSL speed.

[FLC]

Just received a text that my online form has been closed due to already having an open case?

Telephony appears to have disappeared completely from the SR213. Pretty sure yesterday the status page of the web interface stated it was disconnected. Now can't find it at all.

Another one beginning to regret to move to Sky...

[FLC]

Randomly come back on & I didn't imagine the Voice status in the web interface:

That was completely absent earlier today.