Didn’t say they do but they are a well known professional company that have been dealing with DVLA for some years so that must help.SVTech do not have more influence over the DVLA than any other company/engineer so that doesn't mean that using them will give you an 'advantage' enabling you to get your V5C back quicker, it's all down to the luck of the draw at the DVLA.
I think you must have shares in JR consultancy as you bite at every comment.