A few months ago I wrote to express disappointment that a new battery I had purchased from you was not charging/holding a charge. Bearing in mind that for the past 5 years I have spent thousands of pounds on your products, either from ASDA or directly via the website, I would have expected you to replace it but instead you sent me some prepaid mail stamps and asked me to send the battery for testing....Writing a letter of explanation, providing and envelope and going to post it too you was more hassle than it was worth so I just bought another new battery. Not good customer relations if you ask me. In addition, I have noted a VERY marked difference in the last batch of refills I purchased (20 refills)....For years I would use one or two refills per day but in this latest batch I have been CONSISTENTLY having to use at least 5! Seems that either your quality control is amiss or you are deliberately reducing the life of the refills in order to increase sales...Having used your product exclusively for 5+ years I am now considering trying other manufacturers