Newbie here-help with Coeliac tests please!

[Chris1802p]

Hi all- I've posted recently in other communities regarding my anaemia, gut trouble etc. I recently had a colonoscopy which was all clear. My Coeliac tests came back negative :

Ttg IgA level: 0.8 u/ml

IgG level: 0.9 u/ml.

Ref ranges: <7 Neg, 7-10 Equivocal, >10 Positive

Because these results are quite low, and I do suffer from allergies and recurrent tonsillitis etc, I asked my GP if I should have my total IgA tested in case I am deficient. It is after all recommended on NICE guidelines and Coeliac UK. But he flatly refused, saying I did not need further testing and total IgA is not available on the NHS (!)

Now what? I don't feel I can demand it or argue further for fear of totally pissing off my surgery!