Juno, I'm currently on this conveyor belt to get an elcs. I had a traumatic about with my PFB that resulted in emcs, and a severe haemorrhage and bowel failure. However, luckily I recovered well physically. My head, sadly not so well and I had PND and am now in second pregnancy seeing a psychiatrist for anxiety.
I too requested the elcs from the 8 week booking appointment but regardless of how many times I repeat my request have found myself on this route to VBAC. I have had to attend a VBAC clinic to be patronised about why VB is better for the baby (stuff I already knew, ie lungs and breathing probs). At one point I was assigned a 1-1 midwife for 'extra support' during a VB birth. Most midwives I spoke to focused only on VBAC with me and wouldn't discuss elcs in detail.
I'll be honest, I've nearly lost my mind with the anxiety over this. I haven't enjoyed this pregnancy at all for worrying about going through a VBAC, with high level of monitoring a high risk of another emcs or forcep birth. I've been signed off from work with anxiety after having panic attacks. It is no joke how much this can affect you.
Finally, after breaking down (again) to a midwife, they said I could see the consultant earlier than he would normally 'entertain' it at 28 weeks. Like you I had been told throughout that there was no guarantee that he would agree to the elcs due to there being no physical reason as to why I cannot labour efficiently this time round. I was supposed to wait until 34 weeks before I could discuss it with him and a decision would be made.
However, when he saw me at 28 weeks, he was marvellous. Agreed straight away to the elcs, was cross that I hadn't been referred to him sooner and reassured me that I would not have to have a birth experience I did not choose. He bemoaned the woeful under preparation of pregnant women by the NHS and society - especially where intervention, and c-sections are concerned. He was wonderful. He listened to me. And then he agreed to the elcs.
I still have to return at 34 weeks to have my op 'booked in' but the relief of knowing it has been agreed has lifted so much of the anxiety and I finally feel in control and can enjoy the rest of this pregnancy.
I really hope that you get the same result. 