He has had coeliac bloods repeated three times.   Ive tried to make them clearer but wont line up properly on my phone.    1st bloods  TTg IgA6.7    Normal range <7 IgA 0.2          Normal range 0.4-2 2nd bloods  TTg IgA 2.4        Normal range <7 IgA  0.41          Normal range 0.4-2 3rd bloods  TTg IgA3.6       Normal range <7 IgA 0.54           Normal 0.5-2.4 EMA Positive      His IgA bloods are counted as normal but very close to the cut off for IgA deficient.. Apart from one where it actually was deficient 

Many people with celiac disease, especially those who are in the 0-2 year range of their recovery, have additional food intolerance issues which could be temporary. To figure this out you may need to keep a food diary and do an elimination diet over a few months. Some common food intolerance issues are dairy/casein, eggs, corn, oats, and soy. The good news is that after your gut heals (for most people who are 100% gluten-free this will take several months to two years) you may be able to slowly add some these items back into your diet after the damaged villi heal. This article may be helpful:    

I agree, is it possible that your child is IgA deficient, yet has positive results for their tTg-IgA result?

Good news! Keep in mind that approximately 10x more people have non-celiac gluten sensitivity than have celiac disease, but there isn’t yet a test for NCGS. If your symptoms go away on a gluten-free diet it would likely signal NCGS.

So, you are not IGA deficient and your tTG-IGA is clearly positive, indicating you do have celiac disease. Historically, it has been standard practice to confirm positive blood antibody tests with endoscopy/biopsy. In the past several years, however, there has been a trend to forego the latter if the tTG-IGA antibody test scores were 5-10x normal. Your score fits into that category.