As an HR expert, I suggest that you should immediately reach out to your employer or HR department to inquire about the status of your new offer letter. It is vital to have a current offer letter to validate your employment and avoid any unnecessary inconveniences. Consider expressing your concerns about the delay and the repercussions it may have on your employment. This situation can be a genuine mistake or an oversight, but it is crucial to rectify it promptly. By following up on your new offer letter, you demonstrate a sense of responsibility and commitment to your job. This step may also help to avoid any confusion and stress that may come with job insecurity. In conclusion, take the initiative and ask your employer or HR team about the status of your new offer letter to secure your employment.