Based on your situation, it is understandable that you feel frustrated and uncertain about what to do next. If your boss has promised you an increment salary but is leaving the company before your probation ends, it may be challenging to ensure that the promise is fulfilled. However, before considering tendering your resignation, it is important to explore other options and take certain factors into account.Firstly, it would be advisable to communicate your concerns and expectations with your new boss or the HR department. Schedule a meeting to discuss the promised increment salary and express your disappointment that the previous boss, who made the agreement, will no longer be there. Understand their perspective and inquire about the possibility of fulfilling the promise made to you.During this meeting, it would also be helpful to inquire about the company's salary review and promotion policies. Find out if there are any specific timelines or criteria in place for salary increments and promotions. This will give you a better understanding of the normal process within the company and what you can expect.If the new boss or HR department is unwilling or unable to address your concerns and fulfill the promised increment salary, you may need to evaluate your options. Consider the following:1. Evaluate your overall job satisfaction: Assess if the salary is the only major concern you have or if there are other aspects of the job that are not meeting your expectations. If you are generally satisfied with the job, you may want to explore other alternatives before resigning.2. Explore internal opportunities: Check if there are any other positions or departments within the company where your skills and experience can be utilized. Internal job transfers or promotions may provide better compensation and growth opportunities.3. Research the job market: Assess the demand for customer service professionals in your area and identify potential job opportunities in other companies. It is important to have a backup plan before making any decisions.4. Consider negotiating with the new boss or HR department: If you decide to tender your resignation, it might be worth discussing your concerns once again and proposing a solution that could address your salary expectations. However, keep in mind that this may not always yield the desired result.In terms of notice period, it would be essential to refer to your employment contract or company policies to determine the required notice period for resignation. Typically, notice periods are specified by the employer and can vary based on various factors such as length of service and position held. If you are unsure about the notice period, consult your employment contract or seek clarification from the HR department.Ultimately, the decision to tender your resignation should be based on a careful evaluation of your circumstances, the company's response to your concerns, and your personal career aspirations. Best of luck in finding a resolution that aligns with your goals and expectations.