Question about Freetrade (UK broker)

Dear all,
I have a lot of investments and I found this page the other day about current offers for portfolio transfers: https://www.stockbrokercompare.co.uk/special-offers

A couple of these offers are, on the face of it, pretty spectacular. I'm already engaged in transferring some stuff to Charles Stanley which should give me £1500. But according to those offers I should also be able to get at least £20k more (!) by opening accounts with eToro, Freetrade and IG, none of which I have accounts with.

Yesterday I went and opened accounts with all 3 … and also looked at (bad) reviews of each on TrustPilot. All 3 have this in common: that for someone opening an account it is in fact impossible to talk to a human being about questions I have (not in FAQs) about my proposed transfers.

I learnt this morning that in face eToro (at least) gives you an "account manager" when you have above a certain threshold. An eToro employee contacted me and I'm now trying to see whether I can in fact communicate with someone.

Freetrade is offering, again, up to £10k if you transfer enough assets. But some of the reviews on TrustPilot are shocking. OTOH I now learn that they have in fact been taken over by IG … which also proves impossible to talk to on signing up. I have this idea that IG are quite big and long-established with AUM of 20 Bn or something. Which may be no guarantee of anything of course.

Anyway the question is: has anyone ever actually succeeded in talking to a human being at Freetrade? How might I go about doing that?