Nope. Spent literally more than 2 hours on the phone again the other day with EE, spoke to 5 different people until they put me through to 'new broadband' team or whatever they're called.
His words in the end were something along the lines of: 'Our process to merge accounts isn't working, we see we've tried to fix yours a few times with no success'.
My reply was: well if you tried it and it failed, you could have at least called me back as promised to which he had no answer.
Ultimately his solution was to make a new email address and use 2 EE accounts. One for phone and one for broadband which seems so dumb. I actually tried to see if I could get out of my contract and leave EE completely because I seriously don't believe that they're providing a quality service or all the features I'm paying wayyyyyyy too much money a month for. As you might imagine they refused that but when I move house in a couple months I'm gonna suck it up and pay the several hundred pound early termination fee just so I don't have to deal with them anymore. Even if I took my EE broadband with me, they'd renew the 2 year contract which I am absolutely not doing.
For a lot less money, I can get a 2.3gig symmetrical connection for £25 a month less on a CityFibre connection (WITH NO PPPOE!!!!!) so it seems like a no brainer to me.
I, like you, also wish I had never changed over to 'new EE'. It's been an utter s*** show to say the least. I would not recommend EE broadband to anyone. What makes it even worse is that the care team over the phone don't even know how to help. I actually had one guy tell me I was completely wrong when I told him I was on the 1.6gbps service and he said 'that doesn't exist, you're talking about WiFi 6' as if I was a complete idiot.
