This a fantastic question MRP can be acquired through the following ways:
1)If you can get it from auction.
2)If you buy some items from TripleClicks, you get MRP as commission.
3)If you are a member of Wave3 every month you are entitle to MRP and so on and so forth.
We can get most from MRP we earn by redeeming it or use it to purchase some items from TripleClicks such as single TCredit, Digital Cards, S-Builder Co-op Unit e.t.c.