Getting paid

I have done almost 20 jobs, mostly for Kroger. When I applied for the jobs, I didn’t realize 2 weeks was the longest the job would take to pay you. Now I feel so stupid because I did all these jobs, some of them over a week ago and I had a bill due today. On the jobs that I have done in the past I was paid within 3 days at the most. This has been a disappointing experience. When they do pay me, I would like to work for them again. But how can you continue to work, when they’re holding your payment. I guess I’ll know next time, has anyone else experienced this if so how long did it take to receive your payment?