I just chech shop. 3 Items have wrong prices.

Bugs:
1x N-Gacha sell for 1000 Pero should be 1500 Pero!!! (This is a very good offer)
1x N-Gacha sell for 10 gold should be 100 gold (This is not worth buying)
1x R-Gacha sell for 100 gold should be 300 gold (This is not worth buying)

Items sold for Pero:

1x N-Gacha: Price 1000 Pero (this must be a bug) should be 1500 Pero!!!
6x N-Gacha: Price 9000 Poro
1x N-Wild: Price 1000 Pero.
6x N-Wild: Price 6000 Pero.

Item sold for Gold:

Normal price:
SR-Gacha: 200 gold each
Special offer 20x SR-Gacha for 2000 gold (2000 gold discount)

R-Gacha 300 gold each
1x R-Gacha for 100 gold (Bug: Should cost 300 gold)
Special offer 6xR-Gacha 1500 gold(300 gold discount) Why buy 6 for 1500 when 1 cost 100 !?!

N-Gacha
1x N-Gacha cost 10 gold (Bug: Should cost 100 gold)
6x N-Gacha cost 500 gold (Why pay 500 for 6 when 1 cost 10???)

N-Wild cost 100 gold each.
1x N-Wild cost 100 gold
6x N-Wild cost 500 gold. (Buy 6 pay for 5 offer)

1x Chestnut cost 50 gold
11x chestnut cost 500 gold.(Buy 11 pay for 10 offer)

1x Card reveal cost 150 gold
6x Card reveal cost 750 gold (Buy 6 pay for 5 offer)

1x Peronamin cost 100 gold
2x Peronamin cost 100 gold (Once per day offer)
6x Peronamin cost 500 gold (Buy 6 pay for 5 offer)
1x Peronamin half cost 50 gold
1x Pero Pudding cost 100 gold
2x Pero Pudding cost 100 gold (Once per day offer)
6x Pero Pudding cost 500 gold (Buy 6 pay for 5 offer)
1x Pero Pudding half cost 50 gold

Only thing worth buying in shop atm is 1x N-Gacha for 1000 pero.