I received the sample in February. My doctor said I could not take because of high blood pressure and IBS. I called Colom Medic, they told me to ship back the 30 day supply I had already received and been billed for. I did that. I have continue to receive 30 day supply for 2 more months and been billed. I can not get thru their phone number during my lunch time and the web to cancel always says " the link you requested is not available, please try later.". read full review »