USD22.47
http://www.vetnpetdirect.com.au/cdn/shop/products/767246.jpg?v=1552926399 single_pack Clearly there’s money to be made at each step with the weight loss injections and the drug company, the pharmacy and the MHRA will all be paid Choose Your Bundle:5 Pack | 4oz size Losing weight with B12 and lipotropic shots - YouTube
USD22.47
USD24.53
USD26.88
USD28.35
USD27.66
USD26.83
Compare that benefit with your actual intended use. Review whether its quantity matches the quantity of the main purchase where necessary.
Do not confuse an offer extension with placing an order. Explain the specific unanswered question affecting your decision if helpful.
Look for any separate ongoing obligation attached to a component. Ask how an unavailable component affects the complete offer.