(20/02/2019) ordered an LPG changeover valve with OPSO .. 22/02/2019 delivery was unable to find us .. even though BES have delivered to us many times. Ordered a second one "Next day" Saturday delivery - (23/02/2019) so we could do our job on the Monday .. followed our order online on the Saturday and it was out for delivery but at 11.30 the status changed to "sorry we missed you" .. we were here at the address waiting for the delivery .. no attempt was made to deliver at all. I have now paid for two COV's at a cost of £154.64 inc vat .. as of todays date (28/02/2019) .. neither of the items have arrived and BES have as far as I understand not refunded me the above amount. Still waiting for a full refund and still "no attempt to deliver" - rubbish service To get the job done I have since purchased a further two COV's - bought these from Continental product Engineering Ltd - and both items arrived next day NO PROBLEM * Very Good service I think