So, basically, eliaslar, you make it appear like HDW is the true perpetrator of misconduct here, not the Greek government. No offense, but "big" surprise...
Lets look at what you wrote:
The Greek government did nothing to "help" HDW. They are a customer, they issue an order and pay for it, HDW is a for-profit organisation, that delivers what has been ordered. Lets look at the facts, shall we? HDW delivered the first boat. On schedule. The Greek turned it down, saying it did not meet requirements. Fair enough. HDW did not fully confirm the extent to which the boat was claimed to be "not operational", however they confirmed that certain issues arose and were corrected.
The Greek line however was very clear from that point on...they subsequently refused to take over any of the boats, even though they never substantiated, why they did so. Now, looking at Greek budget issues of course one might "suggest", that the true reason is in plain sight. Of cause they paid a percentage of what was agreed upon. They would be in complete and total breach of contract, if they did not. What they are looking for is a discount, not a freebie. On a side-note...when the first reports about the technical deficiencies came out, everybody was looking at the Koreans and wondered if they had the same problems. After some initial claims to the contrary it turned out, there was nothing unusual happening there. HDW really does not have a track record of seriously faulty boats. Greece however does have a track record of seriously faulty financial planning.
The whole shipyard thing obviously was not a favour for HDW. Please tell me, why the Greek are handing out favors like that, why would any responsible national government do that? For what? Being nice to the companies? Then why not just accept one faulty boat? Just another favor, is it not? On the other hand, any national government has a substantial interest to increase their own competency at building ships. Thats why so many subs these days are being build not at the developers shipyard, but that of the customer. Whatever the owner details, its still a Greek shipyard, employing Greek workers and generating money, in a potentially substantial way, for the Greek state. And as for that "they built ships before, obviously they are doing fine"...well no offense, but I think there is a slight difference in building subs in contrast to something else. Obviously the Greek were lacking that capacity before or how many indigenous subs did they build before?