Have a faulty AP250 keys suspected to be because o...

Have a faulty AP250 keys suspected to be because of AC adaptor after less than 1 year, called customer service, was told to pay them a visit at their one and ONLY have service centre at novena square Tower B, security Kiasi, deny entry for visitor, tried to called customer service and they told me that there is nothing they can do about it. Calling out to everybody that are getting a casio electronic product, please do not waste your money on them.