I’m not clear that continuing to take the ELISA test is going to help you at all here. But your call.
I have seen false positives on the chlamydia test before. Most labs now confirm the first positive with a different kind of test, not sure what yours did.
The Biokit may help you, yes. There is an interesting article by Rhoda Ashley Morrow comparing the ELISA, Biokit and western blot. You can look on PubMed for it and see if you find it helpful.
Terri