Lee Oskar Major Diatonic Reedplates A

I would normally rate these reeds much higher. Playing harmonica can be expensive as reeds frequently go flat. Generally buying these replacement reeds is the most economical way of playing, plus Lee Oskars are decent harps. But 2 successive sets of replacement plates had problems... the first set were an unmatched pair of plates and unusable. The second set had dead reed on the first blow hole.
I'm hoping Thomann will sort this out for me.