Contact Patron

You speak a message of two sentences or shorter that is telepathically sent to your Warlock patron during the next month. Upon reciving your message your partron can reply to your with a message of any length.

At Higher Levels. If you cast this spell with a spell slot of 2nd level or higher the time it takes your patron to receive your message shortens. At 2nd level it takes your patron two weeks to get your message, at 3rd only one week, at 4th only one day and at 5th it reaches them instantaneously.