In daily chart we can easily see Silver doing a bullish divergence. RSI is under 30 since nearly the beginning of the month so I think that looking really oversold. In addition to these if we look at the EMA 200 line which was resistance and support for many times, I think we can take that line as our reference target point. Since EMA200 and $22 support nearly at the same level thats not so impossible to see that location as target and a resistance.