When you purchase a deal you will usually be sent an email containing a voucher code. This email might be sent immediately or within 24 hours of the deal expiring. The voucher email will contain important instructions on how to order your item or book your sessions.
If you don't receive the deal email, check your spam folder. If it isn't there you should contact the deal provider as soon as possible. They will be able to send you a replacement.
Use the Internet to look up nutritional supplements that claim to aid weight-loss.