Thanks for the bug report! Does this happen with specifically "overweight" parcels or any parcel? If you could post a screenshot of the mistake preview when this happens, that'd be really helpful -- we've been trying to catch this bug for a while, but haven't been able to replicate it.
In terms of game balance, did you unlock the stamp pack upgrade and purchase mystery stamp packs? If it's not possible to price everything correctly with the upgrades purchased, we'll definitely have to tweak the pricing balance as well.
90 days ago( 1)
That is the book for day one and it says for Gardonia & Verbois 5 euros and for New Simone 25 euros. Sometimes I can get the price right on the 5 euros but definitely not on the 25 one's. I tried this time to only put 25 cent on the 25 euros packages.
Here is the result
There were 2 packages for New Simone and both of them are underpaid, because I put the 25 cents on the package.
When the weight is also important on day 2, the prices for the light packages are sometimes higher than for the other ones. And I don't think I have enough for 35 euros for one package. I think that just the prices need to be taken care of.