Considering the new molds cost is so high, some client will consider to modify the current exist molds if the delivery time is not in a hurry.
Well, as you mentioned, you already proposed to transfer the molds to our factory and do the modification. That is a very good solution too!
Please provide below data and information to learn about what issue of this project:
1. Part data.
2. Mold data.
3. Weekly time plan with mold picture.
4. Inspection report of samples.
5. Sample report to show the issue.
6. Sample.
However, as previous communication, if the issue is only about pricing, and your price is acceptable, you can suggest client transfer the molds to our factory, we can open the mold to see what happen. If we cannot tell by visual check, we will do a mold test to check, client will need to pay this set up cost and raw material cost.
Modification report and quotation will be offer after this mold test.