Office London bad service

Roughly six months ago I bought a pair of superman pumas for my son. He absolutely loved the shoes. Then I noticed everytime he wears this particular shoe his feet gets wet inside. I took the shoe back under manufacturing flaw, I was called back later in that same week to let me know the outcome, I was told the shoe had no airholes, and it was made from a synthetic materials. That is not their flaw the childs feet will sweat. Hence this is an active 3 year old boy. The story doesn't end here, because no proof of purchase they wont credit me or puma Cape Town. Puma head office were doing their best to deliver a service but Office London made it sound as if I never bought the shoe there First and foremost my son has been wearing branded shoes since birth, nike adidas puma even Jordan all originals I have never had a problem until now. My advice to Office London is pratice better customer service, I am no ***** to make allegations to get free stuff but Im not buying things at a door I bought it in Your canal walk store now they claiming they need proof of purchase. Yes Im only one customer I hope this reaches out to more unaware clients of your bad customer service. Very disappointed at your low standards.