You'll need to ask Chat or phone support on 03451 720088 to do this for you, @JALNA-ROBERT, if it's not working for you in My Account.
Check their opening hours here:
https://community.talktalk.co.uk/t5/Articles/How-to-contact-TalkTalk-Broadband/ta-p/2230529
It's just a boost that needs to be added to your package, not an upgrade. Remember that you can't call for more than an hour except to Talktalk customers [3 hrs to Talktalk customers] so you need to redial when approaching 60 minutes to avoid incurring charges. And they only cover ordinary landline 01, 02 and 03 and usual mobile numbers, not 0870 etc.
Gliwmaeden2, a fellow customer.
From the 29th of March our TalkTalk Community will move to peer-to-peer support and the TalkTalk team will no longer be here to support with queries. Don’t worry we still have plenty of ways to reach out if you need to speak to TalkTalk directly. For more details check out the link in the post at the top of any forum message board.
