It is always important for companies to keep their promises, especially regarding working hours. If the company promised a 5-day work week during the interview, and then changed it to a 7-day work week without consulting the employees, that is a breach of trust. It is understandable that working with a small team can require employees to do more work than expected, but it is important for the company to acknowledge the hard work and compensate employees for extra hours worked, either through overtime pay or time off in lieu. If the company does not provide any of these options, and the workload is unbearable, it may be time to consider finding a new job that will provide better working conditions and a fair compensation package. It is important for employees to prioritize their own well-being and not tolerate being taken advantage of by their employer.