Amazon — I purchased reiki pyramid 5 pieces by online by 1000/- but they give me 2 pieces pyramid

Address:

Deganga, North 24 pgs (n), W.B., North 24 Parganas, West Bengal, 743423

Dear sir,
I purchased reiki pyramid 5 pieces by online by rs. 1000/- (Prepaid) but they give me 2 pieces pyramidlz which cost is just rs. 400/-. Amd when i complait the customer care then they refund me only 200/- and i lost rs. 400/- till now.
Please see my facebook link about it👇

https://m.facebook.com/story.php?story_fbid=[protected]&id=[protected]

So, please help me about it.