Replying to How to collect money from family members

Long story short, my cousin owes me a few hundred dollars. He doesn't seem to be in a hurry to pay me back, but I want to get it fast before we both forget. He has been telling me to come over and collect portions of the debt in cash. He has owed me this money since September, and so far he has repaid me 40$. Everytime I text him asking to stop by and grab some cash, he ignores them or he tells me he's not home. Sooo how do I go about getting my cash back.