Hello Hazel,
Thank you for sharing your dream with us. Please take everything that I share to the Holy Spirit for He Alone gives the accurate interpretation.
It is time for redemption and it it is a play of words of some sort. Silver represents redemption.
Regarding 998 Psalms 99:8 and the following excerpt from the Strong’s Greek: 998 came to mind: 998 boēthós ( a masculine noun) – a helper bringing the right aid in time, i.e. to meet an urgent, real need. See 997 (boētheō).
Shalom!