Very bad online experience

I have been supporting Leroy Merlin for years, a great store until I ordered online, it has been the worst experience I have had in years. Item was in stock delivery was 1 of Aug then it changed to 13 Aug with no reason. Sent mail to ask why, I was told no stock, went back on website still showed 3 in stock, sent mail again then suddenly stock was found. Got a call 1 hour later form someone else saying no stock, told them stock was found, then got mail again to say yes stock was found………….and now no more feed back…still says 13 August and no feedback on order cannot even cancel order online…very bad, never again will they see me