UK, Ireland /
Culture shock (my neighbours in the UK are Polish and Slovak) [88]
I am very paranoid that the neighbours are going to con us or burgle us and I know this prejudice is within me.
the cultures are very different and the people don't know the English language and culture that much as you have already stated
it is pretty natural that you don't feel safe being a single English family in the vicinity surrounded by foreigners especially such foreigners (think of moving into some urban area in Cairo not knowing any Arabic - i wouldn't feel very safe nor trusted anyoune right away - in fact I would be suspicious just of everyone around)
people of various backgrounds came to England - actually better educated people (especially with the good English) tend to avoid sticking around other Poles, still even the less educated classes can prove to be very decent people (especially trades people), younger uneducated generations can prove to be a nuisance but it's not set in stone
there can't be much socialising if the other side doesn't know English (nice to meet you - OK) - what I think being in your situation you should invest some time in making some Polish friends outside of this particular community first (it takes Polish people with decent English to do that) - I would aim for people who go to church as these are usually decent people - maybe they have some meetings around the church - this is where you can meet and socialize - there can be some old Polonia institution there around to - younger generations of Poles don't join such institutions often (quite contrarty) - but the aim for you is to have good Polish friends or just decent Polish acquintances who care and would be of help intervening on your side if things become tense with your direct Polish neighbours - you just perhaps can need some help translating when you want to clarify some issues misunderstandings
the advantages of this are - you get to learn more about the culture (join some cultural events, even if only culinary) - you can learn to appreciate some elements of Polish culture - you may eventually find nice friendly people with whom you really can socialise even if not on a regular basis - I know it takes some effort and investing some time - and probably seems a very roundabout approach to dealing with your neighbours - but it can prove very difficult and tense dealing with them directly
btw watch your neighbours closely too and figure out who knows the best English among them ( perhaps you have to test them for their English a bit) - then again those who know English better might not actually be leading personalities among them - it takes a bit observing and figuring so you need your cool and not just withdraw into yourself when you're confronted with larger groups
as for offering help (insisting on it) and then chargin for it - it's not a typical Polish thing - even more it could have been the dynamics in their group - someone with a good intentions might have offered help just because felt like it and then other members of the group might have thought they want some money for it and the person who started the thing might have just given in to the pressure of the group or some headstrong vocal member of the group
(this is not to say the scenario they all meant to squeeze some money from you from the very start could not be true - it could)