keller-sports.comは安全ですか？

incompetents...!!!! They know how to claim our money in no time, but when it comes to service they are awful Liars...!!!! They promice 4-5 working days delivery time, but my staff arrived in 7 working days without any additional notification irresponsibles..!!! I contacted them several times for the delayed delivery but they do not even properly reply. Accountability is unknown word for them...Typical Germans I refused to recieve the order and sent it back right away, It's already almost a month from my money claim, but they still haven't refunded my account. for the moment I take it as self reward for their incompetence....