I was sending my 4-16x44 Sig Select back to Burris for repair and enquired about getting some 1/8th adjustment knobs added. The customer service rep said no problems, $80 and it will be job done. I received the scope back after not being billed and no target knobs added. Now their customer service rep is saying they don't put target knobs on the 4-16. What options are there for target knobs for my scope..and who should I believe at Burris?