PS just to pick up on what Chynah and PaigeTurner have said -
Broadly speaking, your choices are: - deal solely with a consultant, and rely on yourself to push your case and handle 'negotiations' - or go to the perinatal mental health services, or other psych support, and get help via them.
As you have a phobia, I recommend the latter, very strongly. They can offer you a lot of support you won't get if you 'go it alone'. This ranges from having conversations with consultants on your behalf, to managing your notes so you don't have to have repetitive and distressing conversations with every new MW or HCP you encounter, to arranging meetings with MWs so you don't have to be in sight or sound of women on the labour ward. When you are phobic, you are in a different category to women who want a planned CS for other, physical, reasons (not to dismiss them AT ALL!), or as a matter of personal preference, and it's worth recognising that.
Of course, perinatal mental health care is a lottery, like so much on the NHS. I had a good experience, but that won't be the case for everyone.
There's a bit about counselling on the thread I linked to - it can be useful, it's not a magic wand, it depends very much on the individual, where you are in your pregnancy (if you are pregnant) and what is available to you.