Asked to interview me and its been two days?

So the job I applied to last friday (June 25) messaged me this Saturday (June 26) to say that they looked at my resume and wanted to interview mr and that I should let them know what time I’m available to set up the call. I messaged the same day to tell them when I’m available for the interview and its now monday (June 28) and they havent answered back. Should I message them and be like is it still on or should I just let it go? I really wanna get this job :(

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