Wish complaint: you sent me another item

My complaint:

Dear sir or madam,

I booked and paid 28 Euro
124653153pcs Wrench Socket …
Store: Oooks
Quantity: 10 and 8 Euro shipping ,but you sent me another item which cost 6 Euro.

Suggested solution:

I need you to return me my money and i will send you your item which you sent it to me please.

Or if you have another resolving.