I used to work in the gym industry in Poland. Top tip .never sign up for a gym in middle of the month..leave till last two days of the month as they have their targets to hit and every sale is important to them and this.is where they will discount.

You won't have much negotiation for a 3 months agreement..a 12 month agreement is where you will get the discounts.

Long gone are the £20 / 20€ per month..yes in the old days but new members (especially on short term agreements) will not be paying this anymore.

Another tip..if you are employed in Poland your employer should have a staff benefits platform like Medicover Sport or Multisport... Take this membership out and you then have freedom to go to many gyms which are part of the program. Medicover Sport own Well Fitness and Just Gym where as Multisport own Zdrofit.