Enchanting material is obtainable in several ways in game. For the bolts, you can purchase them for platinum by themselves in the golf supply shop. There is also the option to buy premium boxes that contain them along with other goods in the support agency. You can also win them as an award from the lucky ball draw or receive them as rewards for completing missions.
The club mods can be purchased in the golf supply shop for gold or platinum. The patches can be won from completing missions.