Yes, face value I have questions for when the info provided is so one-sided. I could say I've called someone for a week, when it is 2 or 3 calls over the period of a week. What does for a week actually mean?
Lotus apparently asked for no phone calls about this issue, but again, we don't know what preceded this. No screenshots were provided. OP doesn't have to answer to us, but asking for opinions while providing no reference can surely allow that their statements be viewed with a request for clarification or a little scepticism due to bias.
I'd just prefer to see actual or even approximate figures, even without proof. OP could have called 2 or 30 times, but we just don't know. They didn't clarify and I don't like maligning anyone, a company or individual on vague, scant information when the information provided could equally be construed as a perfectly reasonable response.
Lotus seem to be responding, just not how OP expects/ wants them to.
I believe OP @Polkadotdash asked for views on Lotus' response, and I gave my view. I asked for more information in order to form my view. Based upon further info given by OP only, my view is that neither side is unreasonable and an invesstigation is not inappropriate. OP's bank also seems to concur that 30 days investigation is not inappropriate.
Again, if OP received a faulty pen, I truly hope the investigation is quickly found in their favour.
(While clearly not required nor OP's preferred option, extraction by insulin syringe would have been the preferred option by most of us seasoned MJers. It would have eliminated a lot of the angst, eliminated the wait between doses and resolved the issue very quickly with little expense. In fact a huge saving, as OP could have taken advantage of the extra medication in the pens!)